Abrasive fabric



Nov. 17, 1925- R. B. KINGMAN ABRASIVE FABRIC Original Filed May 16, 1924lrli Tr-- il# .ilriil JNVENTOR.

L' M A TToRNEYs.

sell n maw, "d f Patented Nov.`174, 1925.

UNITED STATES PATENT oFFlcE.

RUSSELL B. KINGMAN, OF ORANGE, NEWYJERSEY, ASSIGNOR TO METAL TEXTILECOREORATION, OF WESTI ORANGE, JERSEY, A CORPORATION OF RHODE ISLAND.

ABRAsIvE FABRIC.

Original application filed May 16, 1.924, Serial No. 713,724.- Dividedand thisl application filed. May 2, 1925. Serial No. 27,410.

To all whom t may concern.'

Be it known that I, It-UssnLL B. KiNcarnN, acitizen of the UnitedStates, residingl at Orange, in the ycounty of Essex and State of NewJersey, have `invented certain new and useful Improvements in AbrasiveFabrics; and I do hereby declare the following to be a full, clear, andexact description of the invention, such as will enable others skilledin the art to which it appertains to make and use the same, referencebeing had to the accompanying drawings, and to characters of referencemarked thereon, which form a part of this specification.

This invention relates, generally, to improvements in abrasive fabrics;and more particularly to shrinlrless abrasive fabrics as set forth in myco-pending application for Letters Patent Ser. No. 713,724, filed May16th, 1924, and of which the present application is a. division. l

The present invention has for' its princi al object to provide anabrasive fabric consisting of metal gimped weft threads or strands withwhich are interconnected or knitboth vegetable yarn and metallic crossthreads so related to one another that not only is a highly efficientabrasive uality imparted to the fabric, but the finis red fabric isadequately braced against shrinking, andv consequently' clothsand other`scouring articles made therefrom definitely and 'positively retaintheir shape, and therefore always present in use a desired comparativelyfiat abrasive surface. Furthermore, in the novel fabric, possessing thesaid shrinkless char acter, the meshes thereof remain open, so thatthorough cleansing of the cloth after use is easily accomplished,whereby the same may be easily kept` in a clean, sweet and sanitarycondition, free fromaccumulations df dirt and grease.

With the above objects of the present invention in View, the sameconsists in a fabric comprised of suitable spaced weft threads orstrands of suitable material, such as vegetable yarn, jute or like basematerial, which are gimped' with one or more metallic threads or strandsby spirally winding, twisting or convoluting the latter about the formerfrom end to end. Itis'preferable that the metal gimping should be donewith thin ribbon-like or iat wire made of a noncorrosive metalpossessing a suitable degree of hardness, such, for example, as copper.The metal gimped weft threads are interconected and held together, insuitably spaced relation one to another, by vegetable yarn cross threadsor strands, which are preferably interloopcd or knit by a lock or chainstitch transversely across the spaced gimped weft threads, andalternated with said vegetable yarn cross threads or strands aremetallic cross threads or strands in separatc parallel spaced relationthereto, said metallic cross threads being also preferabl interloo ed orlmit with the gimped we t threads y a lock or chain stitch. By thedescribed alternated parallel relation of said vegetable yarn andmetallic cross or weft threads, the vegetable Yyarn cross threadsprovide a desired degree of water absor tive material in addition to thebody of tie weft threads, while the metallic. cross threads provideabrasive elements in addition to that provided by the gimping of theweft threads, while at the` same time serving to' firmly brace theiinished fabric against contraction or shrinkage. Said metallic crossthreads may be of any desired cross-sectional shape.

This invention is clearly illustratedin the accompanying drawings, inwhich Figure 1 is a face view of a square of the novel abrasive fabricmade according to the principles of this invention gv and Figure 2 is anenlarged fragmentary detail face view `of the same.

In producing'the novel shrinkle'ss abrasive fabric embodying theprinciples of this invention, I take a base thread 3 of any suitablematerial, preferablymade, however, of a vegetable fiber such as jute,and I twist or turn around the body` thereof one ormore metallic strands4, thereby gimping such base thread 3 with metal, so that abrasiveelements are rovided ,by the convolutions of suchmetal ic material. Iprefer to use a form of metallic strand which will, .when thusconvoluted or gimped on the base thread, provide a multiplicity of sharpedges or projections, so that a maximum of abrasiveefficiency isattained, and, therefore, I select for the purpose a thin ribbon-like orfiat copper wire, although I do not intend to linut myself necessarilyto wire of such vide for such comparatively Wide spacing of the weftthreads inthe iinished fabric, l knit the cross threads to forminterlocked loops or links, which surround and hold the weft threadsboth strongly interconnected as Well as spaced apart at the properdistance,

according to the size of-1nesh desired. In

the instant species of my 'invention' I eniploy cross threads of twodifferent materials, tov Wit, cross threads 5 of vegetable yarn, such,for example, as cotton, and cross threads 6 of metallic Wire, such ascopper. The yarn cross threads 5 and metallic cross threads 6 aredisposed in alternated parallel relation, at desired spaced intervalsthroughout the total area of the fabric. By such arrangement a metallicthread 6 will be dispcsedadjacent to a yarn thread 5, andthus the yarnthreads will be braced against contraction when the fabric is Wet,because ci the resistance of the metallic threads 6 to such contraction,and consequently the entire fabric is rendered substantially shrinkless.At the same time the metallic threads 6 serve to provide additionalabrasive acrecare? tion, since the same provide additional metallicprojections -distributed transversely throughout the area of the fabric.From the above it will be understood, that the fabric so constructedWill easily retain the desired flat open mesh condition and shape,whereby not only is its abrasive efficiency increased, but it is alsothe more readily subjected to thorough cleansing and rinsing to free thesame from the dirt and grease accumulated thereon When in use,and-consequently may be easily kept in a clean, sweet and sanitarycondition.

I claim 1. An abrasivewfabric comprising weft threads gimped withmetallic Wire, yarn threads interconnected to and across said weftthreads to produce an open mesh, and all-metal threads alsointerconnected across said Weft'threads in separated and alternatedparallel relation to said yarn threads -at desired intervals relativetothe length of said gimped weft threads. p

'2., An abrasive fabric comprising jute WeitA threads gimped with flatmetallic Wire, vegetable yarn t reads knitted across said weft threadsto space the same apart to produce an open mesh, and additional threadsof metallic Wire also knitted across said weft threads in separated andalternated spaced parallel relation to said yarn threads throughout thearea of the fabric.

in testimony that I claim the invention set forth above I have hereuntoset my hand this 30th day o-April, 1925.

RUSSELL B. KINGMAN.

